Hi,
Connectivity Services Director (CSD) is a Junos Space application for lifecycle management of Layer-2 and Layer-3 VPN services
CSD automates the design, validation, and provisioning of MPLS and carrier Ethernet services such as automating Layer 2 and Layer 3 VPN service activation (MPLS L2 VPN(VPLS), P2P VPN & L3 VPN), enables ISP to deploy services while reducing outages from misconfigured services for all the Juniper Routing Platforms such MX, PTX & ACX etc.. CSD can also re-discover an already deployed MPLS VPN service from existing network and can be re-managed & maintained through CSD App.
CSD leverages the service provisioning capabilities of its predecessor Application called, Services Activation Director while introducing several improvements in features, functionality and user experience. Starting June 3, 2016 Junos Space Connectivity Services Director (CSD) is the replacement product for Service Activation Director.
The latest version of CSD is 2.2R1 supported from JUNOS Platform 17.1 & 18.1 onwards. An upcoming version of CSD 3.0 is expected upcoming quatar introducing EVPN service provisioing.
ESD or Edge Services Director is a Junos Space application for management of services interfaces of MX Series routers, such as adaptive services interfaces and multiservices interfaces. This app consist of service delivery gateway solutions for MX-Series Platform for service as such CGNAT, Firewalls and Intrusion Prevention System, Traffic Direct & Load Balancing and Adaptive Services. This app hasn't much evolved & is use case specific.